Re: 請問 CR
※ 引述《Chantalparis (Chantal)》之銘言：
: Exports of United States wood pulp will rise considerably during this year.
: The reason for the rise is that the falling value of the dollar will make it
: cheaper for paper manufacturers in Japan and Western Europe to buy American
: wood pulp than to get it from any other source.
這題的推論點在paper manufacturers in Japan and Western Europe to buy American
wood pulp
cheap(這裡在提幹中是已成立的條件) ---- buy American wood pulp
: Which of the following is an assumption made in drawing the conclusion above?
: 正確:(B) The quality of the wood pulp produced in the United States would be
: adequate for the purposes of Japanese and Western European paper manufacturers.
Assumption是對結論句的必要條件，若品質不適合，就會影響 buy American wood pulp
這個推論
: 疑問:(C) Paper manufacturers in Japan and Western Europe would prefer to use wood
: pulp produced in the United States if cost were not a factor.
的確如你判斷的if cost were not a factor是有問題的，因為cost在原文題幹中已經是
Premise(討論一件事的前提)，意即討論是否日本和歐洲會去買美國產品都是在"考量成
本背景之下"，若用與現在事實相反假設不考量cost因素，並沒有在討論背景之下(可以算
是與前提相違背)
另外C取非變成would not prefer，基本上這個句變成討論"主觀"的偏好，套美加某位邏輯
老師的名言，AT選項是客觀陳述，主觀偏好無法對結論句產生影響
: 不清楚(C)錯誤點除了Prefer外,還有什麼判別地方,將之取非後也怪怪的,只是感覺
: if cost were not a factor此句應該是有問題,但說不出所以然..
: 感謝~.
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06/02 13:26, , 1F
06/02 13:26, 1F
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